First of all, About her look and style: I enjoy the anime style theme she has going on. I plan on seeing her with Ezreal alot just due to the synergy they have together and the anime style they have
Q: Her white binding: Morganas dark binding but able to hit 2 targets. Fun, Simple. Cool snare skillshot Cooldown is about perfect imo
W: passive cdr and an active ability skillshot wand throw that makes the team+self stealth for 3 seconds? Amazing utility for quick escapes and fun initiations Signiature spell imo Can potentially use it 2 or times in a teamfight with max cdreduc
E: Skillshot aoe light orb that when reaches its destination slows all targets in radius and can be activated to blow up and deal dmg. I feel that this ability is cool and is kind of like the gragas barrel but has the added effect of actually being useful while not blowing it up. This is something that gragas needed and they insituted it in lux. Cool ability, A little slow and easy to dodge but will be nice for a slow+aoe in teamfights. Cooldown time is perfect for it
R: Lazer cannon of doom! It's an ezreal'esque ulti that channels for 1 sec then fires a lazer in a strait line (same radius as ez's ulti) INSTANTLY dealing 350-550 dmg to everyone in that line. Distance is about 1/6 the distance of the map. So it can potentially get you assists/kills on people @ mid tower from the lizard buff. Great initiator ability for teamfights/Ganks/catching escapers finisher move. Can potentially get you a buff or baron from relative safety and at max lvl/cdr (cdr is easy for her) it is on a 30 second cd
Passive: when a target is dmg'd by an ability of lux, they get a debuff for a short time causing them to take extra dmg on lux's next auto attack. Cool ability and allows for some great bonus dmg with sheen/lichbane which I feel is necesary on her to get decent dmg in as her cd's are slightly high. This passive makes up for that tho by giving her an extra attack/dmg ability along with her normal set of abilities
Overall: IMO balanced, Not OP, Not UP. Has decent aoe, A good amount of utility with the aoe slow/double snare/team stealth. Her dmg is fairly underwealming in general but she has a decent little burst. I think she will find teams as a utility mage and people will build her AP/cdr/HP
I cant wait to try her on an Ezreal, Ashe, Karthus, team and aoe ulti people from half the map away just for lulz. Its not practical but in a normal game with some buddies it sounds like fun